Adjustable rivet shaver



FIG. 1 is a top, front and right-side perspective view of an adjustable rivet shaver showing my new design;

FIG. 2 is a rear elevational view;

FIG. 3 is a top plan view; and,

FIG. 4 is a bottom plan view. 

The ornamental design for an adjustable rivet shaver, as shown and described. 